System Updates & Software Install

• dnf (yum) → RedHat → /etc/yum.repos.d

• apt-get → Debian

• rpm → RedHat package management

  • standalone package to install locally
  • hard to install extra dependency

• dnf install mypackage

• rpm -qa | grep mypackage

  • check if package installed

• rpm -ihv /tmp/package.rpm

  • install

• rpm -e packagename

  • remove

• dnf remove package

• dnf update -y

  • update everything (preserves old one)

• dnf upgrade

  • delete and replace with new

Advanced Package Management

• rpm -qa | grep mypackage

  • mypackage-1.0.6

• rpm -qc mypackage-1.0.6

  • configuration files

• which mypackage

  • /usr/bin/mypackage

• rpm -qf /usr/bin/mypackage

  • mypackage-1.0.6

Rollback Update & Patch

• dnf history undo mypackageid
• dnf update → keep the old package
• dnf history → get id